What is x when 45 divided by x equals 90?

In other words, what would the divisor be if the dividend were 45 and the quotient 90?

To find the answer, just divide the dividend by the quotient: 45 ÷ 90 = 0.5

To prove this, let's compute 45 divided by 0.5: 45 0.5 = 90

How does it work?

Asking what the value of x could be when 45 divided by x gives a result of 90, is equivalent to solving the following equation:

45 x = 90

  1. Multiply both sides by x: 45 x x = 90 x
  2. 45 x x is equivalent to x x × 45 , which simplifies to 1 × 45 (or just 45 ).
  3. Thus, the equation becomes: 45 = 90 x
  4. To find x, divide both sides by 90: 45 90 = 90 x 90
  5. Which gives, after simplification: 0.5 = x (or x = 0.5 )

So, if the dividend is 45 and the quotient is 90, the divisor is 0.5.